/*
 * Copyright (c) 2020-2030, Shuigedeng (981376577@qq.com & https://blog.taotaocloud.top/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.taotao.cloud.auth.common.enums;

import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * 线程池拒绝策略枚举
 */
@SuppressWarnings("unused")
public enum RejectedExecutionHandlerPolicy {
	/**
	 * @see ThreadPoolExecutor.CallerRunsPolicy
	 */
	CALLER_RUNS {
		@Override
		public RejectedExecutionHandler getRejectedHandler() {
			return new ThreadPoolExecutor.CallerRunsPolicy();
		}
	},
	/**
	 * @see ThreadPoolExecutor.AbortPolicy
	 */
	ABORT {
		@Override
		public RejectedExecutionHandler getRejectedHandler() {
			return new ThreadPoolExecutor.AbortPolicy();
		}
	},
	/**
	 * @see ThreadPoolExecutor.DiscardOldestPolicy
	 */
	DISCARD_OLDEST {
		@Override
		public RejectedExecutionHandler getRejectedHandler() {
			return new ThreadPoolExecutor.DiscardOldestPolicy();
		}
	},
	/**
	 * @see ThreadPoolExecutor.DiscardPolicy
	 */
	DISCARD {
		@Override
		public RejectedExecutionHandler getRejectedHandler() {
			return new ThreadPoolExecutor.DiscardPolicy();
		}
	};

	public abstract RejectedExecutionHandler getRejectedHandler();
}
